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Abstract
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We consider the FLRW universe in a loop quantum
cosmological model filled with radiation, baryonic matter
(with negligible pressure), dark energy, and dark matter.
The dark matter sector is supposed to be of Bose–Einstein
condensate type. The Bose–Einstein condensation process
in a cosmological context by supposing it as an approximate
first-order phase transition, has already been studied in
the literature. Here, we study the evolution of the physical
quantities related to the early universe description such as
the energy density, temperature, and scale factor of the universe,
before, during, and after the condensation process.We
also consider in detail the evolution era of the universe in a
mixed normal–condensate dark matter phase. The behavior
and time evolution of the condensate dark matter fraction is
also analyzed.
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